US3282772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated glass
Assignee: Libbey Owens Ford Glass Co
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Filing: 1965-06-28
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Granted: 1966-11-01
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Expires: 1985-06-28
Abstract
No abstract record available.
Inventors
- 👤 Sr Curtis W Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:21
CPC Classifications
B; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/1055; B32B17/10761; B32B17/10009; B32B17/10036; B32B17/10165; B32B17/10339; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/24967; Y10T428/31504; Y10T428/31551; Y10T428/31627; Y10T428/3163
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A LAMINATED STRUCTURE CONSISTING ESSENTIALLY OF TWO SHEETS OF GLASS AND A POLYVINYL BUTYRAL INTERLAYER INTERPOSED BETWEEN THE GLASS SHEETS AND BONDED THERETO TO PROVIDE A UNITARY STRUCTURE, ONE OF SAID GLASS SHEETS HAVING A THICKNESS IN THE RANGE OF .130 INCH TO .170 INCH, THE SECOND GLASS SHEETS HAVING A THICKNESS IN THE RANGE OF .040 INCH TO .110 INCH AND SAID POLYVINYL BUTYRAL INTERLAYER HAVING A THICKNESS IN THE RANGE OF .015 INCH TO .045 INCH BUT LESS THAN THE THICKNESS OF SAID SECOND GLASS SHEET, WITH THE THICKNESS OF THE THICKNER GLASS SHEET BEING GREATER THAN THE COMBINED THICKNESS OF THE SAID SECOND GLASS SHEET AND INTERLAYER.
Claim 2
Dependent Claim
110 words
A LAMINATED STRUCTURE CONSISTING ESSENTIALLY OF TWO SHEETS OF GLASS AND A POLYVINYL BUTYRAL INTERLAYER INTERPOSED BETWEEN THE GLASS SHEETS AND BONDED THERETO TO PROVIDE A UNITARY STRUCTURE, ONE OF SAID GLASS SHEETS HAVING A THICKNESS IN THE RANGE OF .130 INCH TO .170 INCH, THE SECOND GLASS SHEETS HAVING A THICKNESS IN THE RANGE OF .040 INCH TO .110 INCH AND SAID POLYVINYL BUTYRAL INTERLAYER HAVING A THICKNESS IN THE RANGE OF .015 INCH TO .045 INCH BUT LESS THAN THE THICKNESS OF SAID SECOND GLASS SHEET, WITH THE THICKNESS OF THE THICKNER GLASS SHEET BEING GREATER THAN THE COMBINED THICKNESS OF THE SAID SECOND GLASS SHEET AND INTERLAYER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |